Gateways in different locations might have a different PSAP than the PSAP of the main server. You must ensure that the system correctly routes emergency calls that are made from telephones that are registered to each gateway to the correct PSAP.

To ensure that a gateway in a separate location can route emergency calls properly, the system requires a CO trunk, a CAMA trunk, or a Primary Rate Interface (PRI) trunk from the gateway to the LEC. You must administer each gateway that is in a different PSAP jurisdiction than the main server in a separate location. This separate administration ensures that the system can route emergency calls from that location. If a gateway is in the same PSAP jurisdiction as the main server, you do not need to administer the gateway in a separate location.